Today's Message Index:
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1. 04:30 PM - Re: Brass bus bar (dougshep@netzero.com)
2. 07:06 PM - Re: Brass bus bar (B Tomm)
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| Subject: | Re: Brass bus bar |
If soldering is not necessary, Could a strip of Aluminum be used for the bus bar?
Message 2
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Thanks Bob,
I found a strip of stainless. .028 thick X 3/4 wide. I believe the
terminals of the BlueSea ANL holders are stainless. I applied some terminal
conductive paste for corrosion control on the aluminum ring terminals. The
Stainless strip connects the two ANL holders. We'll see how this combo
holds up. All parts are easily accessible and replaceable if necessary
after flying. Thanks for the responses.
Bevan
-----Original Message-----
From: owner-aeroelectric-list-server@matronics.com
[mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Robert L.
Nuckolls, III
Sent: Thursday, June 02, 2011 11:27 AM
Subject: Re: AeroElectric-List: Brass bus bar
At 01:47 AM 6/2/2011, you wrote:
<fvalarm@rapidnet.net>
Bob,
Can you tell me how much current the 1/2" wide (.025 thick) brass
bus bar
stock that B&C sells can comfortably handle? It would be a short
piece,
about 3 inches long if that makes a difference?
It will carry a LOT of current but it does
have a significant temperature rise if subjected
to starter currents.
.025 is a bit skinny. I think all the brass
(and copper) straps I've seen on airplanes is
at least .050 if not thicker. See:
http://aeroelectric.com/Pictures/Wiring_Technique/Contactor_Interconnect/
<http://aeroelectric.com/Pictures/Wiring_Technique/Contactor_Interconnect/>
Brass has a small fraction the electrical conductivity
of copper. Look for a display like this:
Emacs!
In your hardware store or hobby shop. I think it includes
copper sheets in .025 which would be much better and
probably adequate.
Also consider soldering up a short piece of welding
cable with terminals of appropriate spacing.
http://www.aeroelectric.com/articles/big_term.pdf
<http://www.aeroelectric.com/articles/big_term.pdf>
Brass isn't out of the question . . . but it's
not the best choice.
Bob . . .
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